which process involves the movement of molecules across the plasma membrane from areas of high to low concentrations without any assistance or energy from the cell?

How would you use stearic acid

Select the numeral form of this number written in scientific notation. 5 * 103 0.005 500 5,000 5,000,000

A key difference between type-1 diabetes and type-2 diabetes is that with type-2, insulin replacement is not used.

Why are algae considered to be the ancestors of land plants?

Which of the following best explains the origin of the predation ability of Venus flytraps? A. Only those plants with the ability to supplement the poor nutrient content of their soils could survive. B.

Explain briefly why there is a limitation on how big a cell can be. Include in your explanation the relationship between a cell's size and its surface area and how this affects what the cell can do.

Which effect is most likely caused by nondisjunction during meiosis? A. an extra chromosome B. an increase in nuclei C. increased survival benefits from traits D. only two types of nitrogenous bases

A segment of dna that codes for rna and a protein is a

For older adults and previously inactive individuals, exercise intensity should fall closer to what percentage of the maximal heart rate?

Colleen has been advised by her physician to avoid taking high-dose supplements of certain vitamins because they can accumulate to toxic levels in her body. which vitamins?